Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。To reduce heat losses the pipes are covered by thermal insulators.为了减少热散失,管子外包保温层.Crystals may be insulators, semiconducto...
Crystals may be insulators, semiconductors, or conductors.晶体可以是绝缘体, 半导体, 或导体.Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。Polluted insulators may flashover at any time...
What is alternative health care? What can it do for you?什么是另类医疗?它能为你做些什么?Their health-care system suffers from queues, shortages and ropey equipment.他们的医疗体系有很多不足:要排队等候,资源短缺,设备陈旧。The insurance industry has produced its ow...
Any sailor who disobeys will be punished with six strokes of the whip.任何违令的船员将被打六鞭子.What shall we do with the drunken sailor?我们怎么处置这个喝醉的水手?The boys listened breathlessly as the sailor detailed the story of the shipwreck....
你可以去看看他,好好地诉诉苦。You can go see him and have a good old moan.他主诉肩胛骨之间有个地方总是疼。He complained of a nagging pain between his shoulder blades.他主诉有耳痛。He complained of an earache....
These crystals are then embedded in a plastic, and the plastic is extruded as a wire...然后将这些晶体嵌入一块塑料,再把塑料挤压成线。The barbed wire had left only the tiniest nick just below my right eye.带刺铁丝网在我的右眼正下方只留了非常小的划痕。...learning to w...